Hey,
I think the table should have si_key = 'en' for English Wikivoyage. That means a database rows for enwiki and enwikivoyage would be:4977 | interwiki | en |4984 | interwiki | en |****but**** the table defines a si_type and si_key as a unique key, so this does not work currently.UNIQUE KEY `site_ids_type` (`si_type`,`si_key`),Any insights on why things are the way they are?